Mitt: 'I have a trustee that manages my blind trust'

1/26/12 8:50 PM EST

Mitt Romney and Newt Gingrich just mixed it up over Romney's tax returns and whether the disclosure was adequate.

At first, Gingrich tried to dodge answering Wolf Blitzer's question about the former speaker talking about Romney's Swiss bank account on the trail earlier this week.

Gingrich repeatedly tried to get away from it, and Romney then said, "Wouldn't it be nice if people didn't make" accusations behind a candidate's back that they won't make in person.

Gingrich then turned to Romney and invited him to explain the Swiss account, acknowledging he'd made the charge off the trail.

"I have a trustee that manages my blind trust," he said, adding that the trustee had "wanted to diversify" his portfolio and put some money in a Swiss account.

"There's nothing wrong with that. ... Don't castigate individuals that have been successful," he said.

It started out poorly but eventually, Romney warmed up, saying he'd earned the money and that "what you've accomplished in your life shouldn't be seen as a detriment, it should be seen as an" accomplishment.